ufs/fstyp/fstyp.c

	fstyp.c revision 7c478bd95313f5f23a4c958a745db2134aa03244
/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License, Version 1.0 only
 * (the "License").  You may not use this file except in compliance
 * with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2003 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*  Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/*    All Rights Reserved   */

/*
 * University Copyright- Copyright (c) 1982, 1986, 1988
 * The Regents of the University of California
 * All Rights Reserved
 *
 * University Acknowledgment- Portions of this document are derived from
 * software developed by the University of California, Berkeley, and its
 * contributors.
 */

#pragma ident   "%Z%%M% %I% %E% SMI"

/*
 * fstyp
 */
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <locale.h>
#include <fcntl.h>
#include <errno.h>
#include <strings.h>

#include <sys/param.h>
#include <sys/types.h>
#include <sys/mntent.h>
#include <sys/errno.h>
#include <sys/fs/ufs_fs.h>
#include <sys/stat.h>
#include <sys/vfs.h>
#include <sys/mnttab.h>

#include <sys/fs/ufs_log.h>
#include <sys/inttypes.h>

#define MAXLABELS   20
#define LINEMAX     256
#define NRPOS       8   /* for pre FFFS compatibility */

static int vflag = 0;       /* verbose output */
static int errflag = 0;
static char *special;

static void usage(void);
static int dumpfs(const char *name);
static void dumpcg(const char *name, const int c);
static void pbits(const void *cp, const int max);

static void dumplog(const char *name);

extern  char    *getfullrawname();

int
main(int argc, char *argv[])
{
    int c;
    struct stat64 st;
    char device[MAXPATHLEN];

    (void) setlocale(LC_ALL, "");
#if !defined(TEXT_DOMAIN)
#define TEXT_DOMAIN "SYS_TEST"
#endif
    (void) textdomain(TEXT_DOMAIN);

    while ((c = getopt(argc, argv, "v")) != EOF) {
        switch (c) {
        case 'v':       /* dump super block */
            vflag++;
            break;

        case '?':
            errflag++;
        }
    }
    if (errflag || argc <= optind) {
        usage();
        return (31+1);
    }

    /*
     * insure that the special device is raw since > 32-bit seeks
     * will not work with block devices (bugs 1248701 and 4045593).
     */

    special = getfullrawname(argv[optind]);
    if (special == NULL) {
        (void) fprintf(stderr, gettext("fstyp: malloc failed\n"));
        exit(31+1);
    }

    if (*special == '\0') {
        if (strchr(argv[optind], '/') != NULL) {
            if (stat64(argv[optind], &st) < 0) {
                (void) fprintf(stderr, "fstyp: %s: %s\n",
                    argv[optind], strerror(errno));
                usage();
                exit(31+1);
            }
            (void) fprintf(stderr,
                gettext("%s: not a raw disk device\n"),
                argv[optind]);
            usage();
            exit(31+1);
        }
        (void) snprintf(device, MAXPATHLEN, "/dev/rdsk/%s",
            argv[optind]);
        if ((special = getfullrawname(device)) == NULL) {
            (void) fprintf(stderr,
                gettext("fstyp: malloc failed\n"));
            exit(31+1);
        }

        if (*special == '\0') {
            (void) snprintf(device, MAXPATHLEN, "/dev/%s",
                argv[optind]);
            if ((special = getfullrawname(device)) == NULL) {
                (void) fprintf(stderr,
                    gettext("fstyp: malloc failed\n"));
                exit(31+1);
            }
            if (*special == '\0') {
                (void) fprintf(stderr,
                    gettext("%s: not a raw disk device\n"),
                    argv[optind]);
                usage();
                exit(31+1);
            }
        }
    }

    return (dumpfs(special));
}


static void
usage(void)
{
    (void) fprintf(stderr, gettext("ufs usage: fstyp [-v] special\n"));
}

static union {
    struct fs fs;
    char pad[MAXBSIZE];
} fsun;
#define afs fsun.fs

static union {
    struct cg cg;
    char pad[MAXBSIZE];
} cgun;
#define acg cgun.cg

char    eg[MAXBSIZE];

static int
dumpfs(const char *name)
{
    int c, i, j, k, size, nrpos;
    struct fs *fsp;
    offset_t offset;
    caddr_t sip;
    time_t t;

    (void) close(0);
    if (open64(name, 0) != 0) {
        perror(name);
        return (1);
    }
    llseek(0, (offset_t)SBLOCK * DEV_BSIZE, 0);
    if (read(0, &afs, SBSIZE) != SBSIZE) {
        perror(name);
        return (1);
    }
    if ((afs.fs_magic != FS_MAGIC) && (afs.fs_magic != MTB_UFS_MAGIC))
        return (31+1);
    if ((afs.fs_magic == MTB_UFS_MAGIC) &&
        (afs.fs_version > MTB_UFS_VERSION_1 ||
        afs.fs_version < MTB_UFS_VERSION_MIN))
        return (31+1);
    printf("%s\n", "ufs");
    if (!vflag)
        return (0);
    fsp = &afs;
    t = (time_t)afs.fs_time;
    printf("magic\t%x\tformat\t%s\ttime\t%s", afs.fs_magic,
        afs.fs_postblformat == FS_42POSTBLFMT ? "static" : "dynamic",
        ctime(&t));
    printf("sblkno\t%d\tcblkno\t%d\tiblkno\t%d\tdblkno\t%d\n",
        afs.fs_sblkno, afs.fs_cblkno, afs.fs_iblkno, afs.fs_dblkno);
    printf("sbsize\t%d\tcgsize\t%d\tcgoffset %d\tcgmask\t0x%08x\n",
        afs.fs_sbsize, afs.fs_cgsize, afs.fs_cgoffset, afs.fs_cgmask);
    printf("ncg\t%d\tsize\t%d\tblocks\t%d\n",
        afs.fs_ncg, afs.fs_size, afs.fs_dsize);
    printf("bsize\t%d\tshift\t%d\tmask\t0x%08x\n",
        afs.fs_bsize, afs.fs_bshift, afs.fs_bmask);
    printf("fsize\t%d\tshift\t%d\tmask\t0x%08x\n",
        afs.fs_fsize, afs.fs_fshift, afs.fs_fmask);
    printf("frag\t%d\tshift\t%d\tfsbtodb\t%d\n",
        afs.fs_frag, afs.fs_fragshift, afs.fs_fsbtodb);
    printf("minfree\t%d%%\tmaxbpg\t%d\toptim\t%s\n",
        afs.fs_minfree, afs.fs_maxbpg,
        afs.fs_optim == FS_OPTSPACE ? "space" : "time");
    printf("maxcontig %d\trotdelay %dms\trps\t%d\n",
        afs.fs_maxcontig, afs.fs_rotdelay, afs.fs_rps);
    printf("csaddr\t%d\tcssize\t%d\tshift\t%d\tmask\t0x%08x\n",
        afs.fs_csaddr, afs.fs_cssize, afs.fs_csshift, afs.fs_csmask);
    printf("ntrak\t%d\tnsect\t%d\tspc\t%d\tncyl\t%d\n",
        afs.fs_ntrak, afs.fs_nsect, afs.fs_spc, afs.fs_ncyl);
    printf("cpg\t%d\tbpg\t%d\tfpg\t%d\tipg\t%d\n",
        afs.fs_cpg, afs.fs_fpg / afs.fs_frag, afs.fs_fpg, afs.fs_ipg);
    printf("nindir\t%d\tinopb\t%d\tnspf\t%d\n",
        afs.fs_nindir, afs.fs_inopb, afs.fs_nspf);
    printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
        afs.fs_cstotal.cs_nbfree, afs.fs_cstotal.cs_ndir,
        afs.fs_cstotal.cs_nifree, afs.fs_cstotal.cs_nffree);
    printf("cgrotor\t%d\tfmod\t%d\tronly\t%d\tlogbno\t%d\n",
        afs.fs_cgrotor, afs.fs_fmod, afs.fs_ronly, afs.fs_logbno);
    printf("version\t%d\n", afs.fs_version);
    if (afs.fs_reclaim & (FS_RECLAIM | FS_RECLAIMING)) {
        printf("fs_reclaim%s%s\n",
            (afs.fs_reclaim & FS_RECLAIM)    ? " FS_RECLAIM"    : "",
            (afs.fs_reclaim & FS_RECLAIMING) ? " FS_RECLAIMING" : "");
    } else {
        printf("fs_reclaim is not set\n");
    }
    if (afs.fs_state + (long)afs.fs_time == FSOKAY) {
        printf(gettext("file system state is valid, fsclean is %d\n"),
            afs.fs_clean);
    } else {
        printf(gettext("file system state is not valid\n"));
    }
    if (afs.fs_cpc != 0) {
        printf(gettext("blocks available in each rotational position"));
    } else {
        printf(gettext(
            "insufficient space to maintain rotational tables\n"));
    }
    for (c = 0; c < afs.fs_cpc; c++) {
        printf(gettext("\ncylinder number %d:"), c);
        nrpos = (((fsp)->fs_postblformat == FS_DYNAMICPOSTBLFMT) ?
            (fsp)->fs_nrpos : NRPOS);
        for (i = 0; i < nrpos; i++) {
            if (fs_postbl(fsp, c)[i] == -1)
                continue;
            printf(gettext("\n   position %d:\t"), i);
            /*CSTYLED*/
            for (j = fs_postbl(fsp, c)[i], k = 1; ;
                j += fs_rotbl(fsp)[j], k++) {
                printf("%5d", j);
                if (k % 12 == 0)
                    printf("\n\t\t");
                if ((fs_rotbl(fsp))[j] == 0)
                    break;
            }
        }
    }
    printf("\ncs[].cs_(nbfree,ndir,nifree,nffree):\n\t");
    sip = calloc(1, afs.fs_cssize);
    afs.fs_u.fs_csp = (struct csum *)sip;
    for (i = 0, j = 0; i < afs.fs_cssize; i += afs.fs_bsize, j++) {
        size = afs.fs_cssize - i < afs.fs_bsize ?
            afs.fs_cssize - i : afs.fs_bsize;
        offset = (offset_t)fsbtodb(
            &afs, (afs.fs_csaddr + j * afs.fs_frag)) * DEV_BSIZE;
        llseek(0, offset, 0);
        if (read(0, sip, size) != size) {
            perror(name);
            return (1);
        }
        sip += size;
    }
    for (i = 0; i < afs.fs_ncg; i++) {
        struct csum *cs = &afs.fs_cs(&afs, i);
        if (i && i % 4 == 0)
            printf("\n\t");
        printf("(%ld,%ld,%ld,%ld) ",
            cs->cs_nbfree, cs->cs_ndir, cs->cs_nifree, cs->cs_nffree);
    }
    printf("\n");
    if (afs.fs_ncyl % afs.fs_cpg) {
        printf(gettext("cylinders in last group %d\n"),
            i = afs.fs_ncyl % afs.fs_cpg);
        printf(gettext("blocks in last group %d\n"),
            i * afs.fs_spc / NSPB(&afs));
    }
    printf("\n");
    for (i = 0; i < afs.fs_ncg; i++)
        dumpcg(name, i);
    if (afs.fs_logbno)
        dumplog(name);
    (void) close(0);
    return (0);
}

static void
setsum(int32_t *sp, int32_t *lp, int nb)
{
    int32_t csum = 0;

    *sp = 0;
    nb /= sizeof (int32_t);
    while (nb--)
        csum += *lp++;
    *sp = csum;
}

static int
checksum(int32_t *sp, int32_t *lp, int nb)
{
    int32_t ssum = *sp;

    setsum(sp, lp, nb);
    if (ssum != *sp) {
        *sp = ssum;
        return (0);
    }
    return (1);
}

static void
dumplog(const char *name)
{
    int i;
    long        tb = 0;
    extent_block_t  *ebp;
    extent_t    *ep;
    ml_odunit_t *ud;

    printf("\nlog\n");
    if (afs.fs_magic == FS_MAGIC)
        printf("log allocation block %ld\n", afs.fs_logbno);
    else
        printf("log allocation block (in frags) %ld\n", afs.fs_logbno);
    (void) llseek(0, (offset_t)logbtodb(&afs, afs.fs_logbno) * DEV_BSIZE,
        0);
    if (read(0, (char *)&eg, afs.fs_bsize) != afs.fs_bsize) {
        printf(gettext(
            "dumplog: %s: error reading log allocation\n"),
            name);
        return;
    }
    ebp = (void *)eg;
    if (ebp->type != LUFS_EXTENTS)
        printf(gettext("Invalid log allocation type %x\n"), ebp->type);
    if (!checksum(&ebp->chksum, (int32_t *)ebp, afs.fs_bsize))
        printf(gettext("Invalid log checksum\n"));

    for (i = 0, ep = &ebp->extents[0]; i < ebp->nextents; ++i, ++ep) {
        printf("\tlogical block\t%" PRId32
            "\tphysical block\t%" PRId32
            "\tblocks\t%" PRId32 "\n",
            ep->lbno, ep->pbno, ep->nbno);
        tb += dbtob(ep->nbno);
    }
    printf("log size %" PRIu32 " bytes (%ld calculated)\n",
        ebp->nbytes, tb);
    printf("\n");
    ep = &ebp->extents[0];
    (void) llseek(0, (offset_t)logbtodb(&afs, ep->pbno) * DEV_BSIZE, 0);
    if (read(0, (char *)&eg, dbtob(LS_SECTORS)) != dbtob(LS_SECTORS)) {
        printf(gettext(
            "dumplog: %s: error reading log state\n"), name);
        return;
    }
    ud = (void *)&eg;
    printf("version\t\t%" PRIu32 "\t\t", ud->od_version);
    if (ud->od_badlog)
        printf("logstate\tError\n");
    else
        printf("logstate\tOkay\n");
    printf("bol\t\t%" PRId32 "\t\teol\t\t%" PRId32 "\n",
        ud->od_bol_lof, ud->od_eol_lof);
    printf("requestsize\t%" PRIu32 "\n", ud->od_requestsize);
    printf("statesize\t%" PRIu32 "\n", ud->od_statesize);
    printf("logsize\t\t%" PRIu32 "\n", ud->od_logsize);
    printf("maxtransfer\t%" PRIu32 "\t\tdevbsize\t%" PRIu32 "\n",
        ud->od_maxtransfer, ud->od_devbsize);
    printf("head\t\t%" PRId32 "\t\thead ident\t%#" PRIx32 "\n",
        ud->od_head_lof, ud->od_head_ident);
    printf("tail\t\t%" PRId32 "\t\ttail ident\t%#" PRIx32 "\n",
        ud->od_tail_lof, ud->od_tail_ident);
    printf("\t\t\t\tdebug\t\t%#" PRIx32 "\n", ud->od_debug);
    if (ud->od_head_ident + ud->od_tail_ident != ud->od_chksum)
        printf("Bad chksum\t%#" PRIx32 "\n", ud->od_chksum);
    else
        printf("Good chksum\t%#" PRIx32 "\n", ud->od_chksum);
}

static void
dumpcg(const char *name, const int c)
{
    int i, j;
    offset_t    off;
    struct cg   *cgp;
    struct ocg  *ocgp;
    struct fs   *fsp;
    time_t      t;

    printf("\ncg %d:\n", c);
    off = llseek(0, (offset_t)fsbtodb(&afs, cgtod(&afs, c)) * DEV_BSIZE, 0);
    if (read(0, (char *)&acg, afs.fs_bsize) != afs.fs_bsize) {
        printf(gettext("dumpfs: %s: error reading cg\n"), name);
        return;
    }
    cgp = (struct cg *)&acg;
    ocgp = (struct ocg *)&acg;
    fsp = &afs;
    if (!cg_chkmagic(cgp))
        printf(gettext("Invalid Cylinder grp magic fffs:%x  4.2 fs:%x\n"),
        cgp->cg_magic, ocgp->cg_magic);
    if (cgp->cg_magic == CG_MAGIC) {
        /* print FFFS 4.3 cyl grp format. */
        t = (time_t)cgp->cg_time;
        printf("magic\t%x\ttell\t%lx\ttime\t%s",
            cgp->cg_magic, (off_t)off, ctime(&t)); /* *** */
        printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
            cgp->cg_cgx, cgp->cg_ncyl, cgp->cg_niblk, cgp->cg_ndblk);
        printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
            cgp->cg_cs.cs_nbfree, cgp->cg_cs.cs_ndir,
            cgp->cg_cs.cs_nifree, cgp->cg_cs.cs_nffree);
        printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum",
            cgp->cg_rotor, cgp->cg_irotor, cgp->cg_frotor);
        for (i = 1, j = 0; i < afs.fs_frag; i++) {
            printf("\t%d", cgp->cg_frsum[i]);
            j += i * cgp->cg_frsum[i];
        }
        printf(gettext("\nsum of frsum: %d\niused:\t"), j);
        pbits(cg_inosused(cgp), afs.fs_ipg);
        printf(gettext("free:\t"));
        pbits(cg_blksfree(cgp), afs.fs_fpg);
        printf("b:\n");
        for (i = 0; i < afs.fs_cpg; i++) {
            printf("   c%d:\t(%d)\t", i, cg_blktot(cgp)[i]);
            for (j = 0; j < fsp->fs_nrpos; j++) /* ****** */
                printf(" %d", cg_blks(fsp, cgp, i)[j]);
            printf("\n");
        }
    } else if (ocgp->cg_magic == CG_MAGIC) {
        /* print Old cyl grp format. */
        t = (time_t)ocgp->cg_time;
        printf("magic\t%x\ttell\t%lx\ttime\t%s",
            ocgp->cg_magic, (off_t)off, ctime(&t));
        printf("cgx\t%d\tncyl\t%d\tniblk\t%d\tndblk\t%d\n",
            ocgp->cg_cgx, ocgp->cg_ncyl, ocgp->cg_niblk,
            ocgp->cg_ndblk);
        printf("nbfree\t%d\tndir\t%d\tnifree\t%d\tnffree\t%d\n",
            ocgp->cg_cs.cs_nbfree, ocgp->cg_cs.cs_ndir,
            ocgp->cg_cs.cs_nifree, ocgp->cg_cs.cs_nffree);
        printf("rotor\t%d\tirotor\t%d\tfrotor\t%d\nfrsum",
            ocgp->cg_rotor, ocgp->cg_irotor, ocgp->cg_frotor);
        for (i = 1, j = 0; i < afs.fs_frag; i++) {
            printf("\t%d", ocgp->cg_frsum[i]);
            j += i * ocgp->cg_frsum[i];
        }
        printf(gettext("\nsum of frsum: %d\niused:\t"), j);
        pbits(ocgp->cg_iused, afs.fs_ipg);
        printf(gettext("free:\t"));
        pbits(ocgp->cg_free, afs.fs_fpg);
        printf("b:\n");
        for (i = 0; i < afs.fs_cpg; i++) {
            printf("   c%d:\t(%d)\t", i, ocgp->cg_btot[i]);
            for (j = 0; j < NRPOS; j++)
                printf(" %d", ocgp->cg_b[i][j]);
            printf("\n");
        }
    }
}


static void
pbits(const void *p, const int max)
{
    int i;
    int count = 0, j;
    unsigned char *cp = (unsigned char *)p;

    for (i = 0; i < max; i++) {
        if (isset(cp, i)) {
            if (count)
                printf(",%s", (count % 9 == 8) ? "\n\t" : " ");
            count++;
            printf("%d", i);
            j = i;
            while ((i + 1) < max && isset(cp, i+1))
                i++;
            if (i != j)
                printf("-%d", i);
        }
    }
    printf("\n");
}